Overview |
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Rubber expansion joints are also called flexible joint, rubber compensator or vibration absorber. Due to the flexibility of rubber, beside metal expansion joints, rubber expansion joints are always introduced to thepiping system to solve some certain problems.
Rubber expansion joints Twin Arch Type 1020 are also called double sphere rubber joint. The difference with Single Arch Type 1010 is it has two arches, longer structure makes the movements ability better.
Features and Benefits |
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Absorb vibration
Make up piping misalignment
Offset thermal movement
Release piping stress
Cost-effective
Less weight
Easy installation
Suitable for high pressure application
Supply Range |
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Size: 32mm to 600mm
Temperature: -40℃ to 120℃
Fluid: Water, Swage, Acid, Alkali, Oil, etc.
Pressure Rating: PN6/PN10/PN16
Part & Options |
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| Item | Part | Available Material | Quantity |
| 1 | Bellows | EPDM/NR/NBR/Neoprene/Hypalon | 1 |
| 2 | Flange | St37.2/A105/SS304/SS316 | 2 |
| 3 | Carcass | Synthetic Fabric | 1 |
| 4 | Reinforcement | Steel Wire | 2 |
Data Sheet |
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| Size | L | Pressure | Vacuum | Flange Pattern | Movements | |||
| mm | mm | bar | mbar | Comp.(mm) | Ext.(mm) | Lateral(mm) | Angular(°) | |
| 32 | 175 | 16 | Max | All Available | 50 | 30 | 35 | 50 |
| 40 | 175 | 16 | Max | All Available | 50 | 30 | 35 | 50 |
| 50 | 175 | 16 | Max | All Available | 50 | 30 | 35 | 50 |
| 65 | 175 | 16 | Max | All Available | 50 | 30 | 35 | 50 |
| 80 | 175 | 16 | Max | All Available | 50 | 30 | 35 | 50 |
| 100 | 225 | 16 | Max | All Available | 60 | 40 | 45 | 40 |
| 125 | 225 | 16 | 800 | All Available | 60 | 40 | 45 | 32 |
| 150 | 225 | 16 | 800 | All Available | 60 | 40 | 45 | 26 |
| 200 | 325 | 16 | 500 | All Available | 60 | 40 | 45 | 20 |
| 250 | 325 | 10 | 500 | All Available | 60 | 40 | 45 | 16 |
| 300 | 325 | 10 | 500 | All Available | 60 | 40 | 45 | 13 |
| 350 | 325 | 10 | 300 | All Available | 60 | 40 | 45 | 12 |
| 400 | 325 | 10 | 200 | All Available | 60 | 40 | 45 | 11 |
| 450 | 325 | 10 | 200 | All Available | 60 | 40 | 45 | 10 |
| 500 | 325 | 6 | 200 | All Available | 60 | 40 | 45 | 10 |
| 600 | 325 | 6 | 200 | All Available | 60 | 40 | 45 | 10 |
PS: |
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Pressure rating is for rubber bellows on base of 31 ℃, when higher temperature the pressure rating will reduce.
Movements in above table arenon-concurrent.
Test pressure is 1.5 times the pressure rating. UNICK rubber expansion joints could take 3 times design pressure for safety.
